// export default function (down_url, fileName, isBlob) {
//   const blob = isBlob || false
//   if (blob) {
//     const newBlob = new blob([down_url])
//     let url = URL.createObjectURL(newBlob)
//   }
// }

function downBase64 (url, fileName) {
  if (!url) {
    throw new Error('The URL is required!')
  }
  const file = fileName || randomName(12)
  const link = document.createElement('a')
  link.href = url
  link.download = file
  document.body.appendChild(link)
  link.click()
  document.body.removeChild(link)
}

function downUrl (url, fileName) {
  if (!url) {
    throw new Error('The URL is required!')
  }
  const file = fileName || ''
  const link = document.createElement('a')
  link.href = url
  link.download = file
  document.body.appendChild(link)
  link.click()
  document.body.removeChild(link)
}

function randomName (length) {
  const data =
    ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
      'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y',
      'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
      's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
  let num = ''
  for (let i = 0; i < length; i++) {
    const r = parseInt(Math.random() * 61, 10)
    num += data[r]
  }
  return new Date().toLocaleDateString().replace(/\//ig, '') + num
}

export {
  downBase64,
  downUrl
}
